Mishimoto OE-Replacement Ignition Coil - 1999-2007 GM Square Style Engine (Single)

This is a Mishimoto OE-replacement ignition coil for the 99-07 GM Square Style Engine, sold individually. It's designed and tested to meet or exceed the factory coil's performance, so it restores a strong, consistent spark and clears up the misfires, rough idle, and hard starts that come from a worn or failing coil. Pair it with fresh spark plugs for a clean refresh of the ignition system. Backed by Mishimoto's lifetime warranty.

Specifications

This part fits:

Shipping

• In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
• Standard, expedited, and overnight options at checkout.
• Oversized items ship by freight and take longer.
• Backordered items ship as soon as stock lands — contact us for lead times.
• International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

• 30-day returns on new, uninstalled items in original packaging with all hardware.
• Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
• Installed or used parts can’t be returned — confirm fitment before you install.
• Special orders and custom items are final sale.
• Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Refund Policy